Hello, thanks for contacting HCM.
I am glad that the endoscopy
was normal. I am
assuming it did not show any hiatus hernia
, ulcers etc.
From your description and the fact that the pain gets better
when you turn to your left and laying down , it is related
to gas trapped in the stomach. When it escapes after entering
the intestine , the pressure is relieved and the pain under therib cage
disappears. Make sure you drink enough liquids.
Try to avoid gassy vegetables such as cabbage , cauliflower etc.
Peppermint oil capsules are also helpful in reducing gas.
Wish you well.